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52120023201 = 32311367136657
BaseRepresentation
bin110000100010100110…
…000111000010100001
311222112100000111201200
4300202212013002201
51323220211220301
635535452551413
73523403613261
oct604246070241
9158470014650
1052120023201
1120116437944
12a126a82569
134bb804b71c
14274610d7a1
151550a64c86
hexc229870a1

52120023201 has 24 divisors (see below), whose sum is σ = 77770427904. Its totient is φ = 33600977280.

The previous prime is 52120023199. The next prime is 52120023281. The reversal of 52120023201 is 10232002125.

It is not a de Polignac number, because 52120023201 - 21 = 52120023199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52120023281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313065 + ... + 449721.

It is an arithmetic number, because the mean of its divisors is an integer number (3240434496).

Almost surely, 252120023201 is an apocalyptic number.

It is an amenable number.

52120023201 is a deficient number, since it is larger than the sum of its proper divisors (25650404703).

52120023201 is a wasteful number, since it uses less digits than its factorization.

52120023201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138061 (or 138058 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 52120023201 its reverse (10232002125), we get a palindrome (62352025326).

The spelling of 52120023201 in words is "fifty-two billion, one hundred twenty million, twenty-three thousand, two hundred one".

Divisors: 1 3 9 31 93 279 1367 4101 12303 42377 127131 136657 381393 409971 1229913 4236367 12709101 38127303 186810119 560430357 1681291071 5791113689 17373341067 52120023201